/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 苏李涛
 * Date: 2024-10-18
 * Time: 9:53
 */
public class Demo3 {

    public static void main(String[] args) throws InterruptedException {
        Object locker1 = new Object();
        Object locker2 = new Object();
        Object locker3 = new Object();

        Thread t1 = new Thread(()->{
            for (int i = 0; i < 10; i++) {
                synchronized (locker1){
                    try {
                        locker1.wait();
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
                System.out.print("A");
                synchronized (locker2) {
                    locker2.notify();
                }
            }
        });

        Thread t2 = new Thread(()->{
            for (int i = 0; i < 10; i++) {
                synchronized (locker2){
                    try {
                        locker2.wait();
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
                System.out.print("B");
                synchronized (locker3) {
                    locker3.notify();
                }
            }
        });

        Thread t3 = new Thread(()->{
            for (int i = 0; i < 10; i++) {
                synchronized (locker3){
                    try {
                        locker3.wait();
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
                System.out.println("C");
                synchronized (locker1) {
                    locker1.notify();
                }
            }
        });

        t1.start();
        t2.start();
        t3.start();


        // 主线程中, 先通知一次 locker1, 让上述逻辑从 t1 开始执行
        // 需要确保上述三个线程都执行到 wait, 再进行 notify

//        Thread.sleep(1000);
        synchronized (locker1) {
            locker1.notify();
        }
    }

}
